:root {
    --gold: #c9a84c;
    --gold-light: #e8c97a;
    --gold-dim: #7a6130;
    --parchment: #d4b896;
    --ink: #1a1410;
    --ink-mid: #2a2018;
    --shadow: #0d0b08;
    --text-body: #c8b090;
    --text-faint: #6b5a3e;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }

  body {
    background-color: var(--ink);
    color: var(--text-body);
    font-family: 'Noto Serif JP', serif;
    font-weight: 300;
    overflow-x: hidden;
    min-height: 100vh;
  }

  /* ── NOISE TEXTURE ── */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
    opacity: 0.35;
  }

  /* ── FIREFLY CANVAS ── */
  #fireflyCanvas {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
  }

  /* ── NAVIGATION ── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    gap: 3rem;
    padding: 1.4rem 2rem;
    background: linear-gradient(to bottom, rgba(13,11,8,0.97) 0%, rgba(13,11,8,0) 100%);
    letter-spacing: 0.15em;
    font-size: 0.7rem;
    font-family: 'IM Fell English', serif;
  }
  nav a {
    color: var(--gold-dim);
    text-decoration: none;
    transition: color 0.4s;
    text-transform: capitalize;
  }
  nav a:hover { color: var(--gold-light); }
  nav a.active { color: var(--gold); }

  /* ── MAIN LAYOUT ── */
  .page-wrapper {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 1.5rem 6rem;
    background:
      radial-gradient(ellipse 90% 55% at 50% 20%, rgba(50,35,8,0.45) 0%, transparent 70%),
      linear-gradient(to bottom, var(--ink) 0%, #16110a 50%, var(--ink) 100%);
  }

  /* ── HERO SECTION ── */
  .hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 9rem 2rem 3.5rem;
    text-align: center;
    width: 100%;
  }

  .hero-eyebrow {
    font-family: 'IM Fell English', serif;
    font-size: 0.62rem;
    letter-spacing: 0.45em;
    color: var(--gold-dim);
    text-transform: uppercase;
    margin-bottom: 1.4rem;
    opacity: 0;
    animation: fadeUp 1.2s ease forwards 0.4s;
  }

  .hero-title {
    font-family: 'IM Fell English', serif;
    font-size: clamp(2.4rem, 7vw, 4.8rem);
    color: var(--gold);
    letter-spacing: 0.06em;
    margin-bottom: 0.4rem;
    opacity: 0;
    animation: fadeUp 1.4s ease forwards 0.7s;
    text-shadow: 0 0 70px rgba(201,168,76,0.35), 0 2px 30px rgba(0,0,0,0.9);
  }

  .hero-title-jp {
    font-family: 'Noto Serif JP', serif;
    font-weight: 200;
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--text-faint);
    letter-spacing: 0.3em;
    margin-bottom: 1.8rem;
    opacity: 0;
    animation: fadeUp 1.4s ease forwards 0.95s;
  }

  .hero-divider {
    width: 1px;
    height: 0;
    background: linear-gradient(to bottom, transparent, var(--gold-dim), transparent);
    animation: growLine 1.6s ease forwards 1.5s;
    margin: 0 auto 2rem;
  }
  @keyframes growLine { to { height: 60px; } }

  .hero-desc {
    font-family: 'Cormorant Garamond', serif;
    font-style: italic;
    font-size: clamp(0.85rem, 2vw, 1.05rem);
    color: var(--text-faint);
    letter-spacing: 0.12em;
    line-height: 2;
    opacity: 0;
    animation: fadeUp 1.4s ease forwards 1.9s;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  /* ── ORNAMENT ── */
  .ornament {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    width: 100%;
    max-width: 680px;
    margin: 0 auto 2.5rem;
    opacity: 0;
    animation: fadeUp 1.2s ease forwards 2.2s;
  }
  .ornament-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--gold-dim), transparent);
  }
  .ornament-glyph {
    font-family: 'IM Fell English', serif;
    font-size: 1.1rem;
    color: var(--gold-dim);
    line-height: 1;
  }

  /* ── BOARD CONTAINER ── */
  .board-outer {
    width: 100%;
    max-width: 680px;
    opacity: 0;
    animation: fadeUp 1.2s ease forwards 2.5s;
  }

  .board-header {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    margin-bottom: 1rem;
    padding: 0 0.2rem;
  }
  .board-label {
    font-family: 'IM Fell English', serif;
    font-size: 0.6rem;
    letter-spacing: 0.5em;
    color: var(--gold-dim);
    text-transform: uppercase;
  }
  .board-count {
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.7rem;
    color: var(--text-faint);
    letter-spacing: 0.2em;
  }

  /* ── SCROLL LIST ── */
  .board-scroll {
    /* 5行分表示: 各エントリ約88px */
    max-height: 440px;
    overflow-y: auto;
    border: 1px solid rgba(201,168,76,0.12);
    border-top: 1px solid rgba(201,168,76,0.25);
    background:
      linear-gradient(to bottom, rgba(26,20,16,0.85), rgba(22,17,10,0.92));
    position: relative;
    scrollbar-width: thin;
    scrollbar-color: var(--gold-dim) transparent;
  }
  .board-scroll::-webkit-scrollbar { width: 4px; }
  .board-scroll::-webkit-scrollbar-track { background: transparent; }
  .board-scroll::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 2px; }

  /* 上下のフェードマスク */
  .board-scroll-wrapper {
    position: relative;
  }
  .board-scroll-wrapper::before,
  .board-scroll-wrapper::after {
    content: '';
    position: absolute;
    left: 0; right: 0;
    height: 40px;
    z-index: 5;
    pointer-events: none;
  }
  .board-scroll-wrapper::before {
    top: 0;
    background: linear-gradient(to bottom, rgba(26,20,16,0.9), transparent);
  }
  .board-scroll-wrapper::after {
    bottom: 0;
    background: linear-gradient(to top, rgba(22,17,10,0.95), transparent);
  }

  /* ── EACH ENTRY ── */
  .entry {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0 1.6rem;
    padding: 1.3rem 1.8rem 1.3rem 1.6rem;
    border-bottom: 1px solid rgba(201,168,76,0.07);
    position: relative;
    transition: background 0.4s;
    cursor: default;
  }
  .entry:last-child { border-bottom: none; }
  .entry::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: transparent;
    transition: background 0.4s;
  }
  .entry:hover { background: rgba(201,168,76,0.04); }
  .entry:hover::before { background: var(--gold-dim); }

  .entry-date {
    font-family: 'IM Fell English', serif;
    font-size: 0.65rem;
    color: var(--gold-dim);
    letter-spacing: 0.12em;
    white-space: nowrap;
    padding-top: 0.15rem;
    line-height: 1.8;
  }

  .entry-body {}
  .entry-tag {
    display: inline-block;
    font-family: 'IM Fell English', serif;
    font-size: 0.5rem;
    letter-spacing: 0.35em;
    color: var(--gold-dim);
    border: 1px solid rgba(201,168,76,0.25);
    padding: 0.15em 0.6em;
    margin-bottom: 0.45rem;
    text-transform: uppercase;
  }
  .entry-tag.new { color: var(--gold-light); border-color: rgba(232,201,122,0.5); }

  .entry-title {
    font-family: 'Noto Serif JP', serif;
    font-weight: 300;
    font-size: 0.9rem;
    color: var(--text-body);
    letter-spacing: 0.05em;
    line-height: 1.7;
    margin-bottom: 0.3rem;
  }
  .entry-title-en {
    font-family: 'Cormorant Garamond', serif;
    font-style: italic;
    font-size: 0.75rem;
    color: var(--text-faint);
    letter-spacing: 0.1em;
  }

  /* ── BOTTOM ORNAMENT ── */
  .board-footer {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0 0;
    opacity: 0;
    animation: fadeUp 1.2s ease forwards 2.9s;
  }
  .board-footer-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(201,168,76,0.18), transparent);
  }
  .board-footer-glyph {
    font-family: 'IM Fell English', serif;
    font-size: 0.6rem;
    letter-spacing: 0.4em;
    color: var(--text-faint);
  }

  /* ── WATERMARK ── */
  .watermark {
    position: fixed;
    bottom: -2rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'IM Fell English', serif;
    font-size: clamp(5rem, 20vw, 14rem);
    color: transparent;
    -webkit-text-stroke: 1px rgba(201,168,76,0.05);
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
    z-index: 0;
  }

  /* ── BOTTOM NAV ── */
  .bottom-nav {
    position: fixed;
    bottom: 1.5rem;
    right: 2rem;
    font-family: 'IM Fell English', serif;
    font-size: 0.6rem;
    letter-spacing: 0.25em;
    color: var(--gold-dim);
    cursor: pointer;
    transition: color 0.3s;
    z-index: 1000;
    text-decoration: none;
  }
  .bottom-nav:hover { color: var(--gold); }

  /* MOBILE */
  @media (max-width: 640px) {
    nav { gap: 1.2rem; font-size: 0.6rem; }
    .entry { grid-template-columns: 1fr; gap: 0.3rem 0; }
    .entry-date { font-size: 0.58rem; }
  }

  /* ── BOARD IMAGE ── */
  .board-image-wrap {
    width: 100%;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(201,168,76,0.18);
    border-bottom: none;
    margin-bottom: 0;
  }
  .board-image-wrap img {
    width: 100%;
    display: block;
    filter: sepia(0.15) brightness(0.88) contrast(1.05);
    transition: filter 1.2s ease;
  }
  .board-image-wrap:hover img {
    filter: sepia(0.05) brightness(0.95) contrast(1.02);
  }
  .board-image-vignette {
    position: absolute;
    inset: 0;
    background:
      linear-gradient(to bottom, rgba(26,20,16,0.18) 0%, transparent 25%, transparent 75%, rgba(26,20,16,0.55) 100%),
      linear-gradient(to right, rgba(26,20,16,0.25) 0%, transparent 10%, transparent 90%, rgba(26,20,16,0.25) 100%);
    pointer-events: none;
  }